Harbor Freight 98478 $17.99 Nitrous boost / vac gauge test
Some of you have been watching my 2002 G20 automatic turbo build. It is simple and CHEAP as possible. I really wanted a boost gauge that was cheap so I ran to Harbor Freight and picked up a PN:98478 Nitrous boost/vac gauge for $17.99 and then cheaped out even more and used the 20% off $14.39+tax The only thing while installing it that I didn't like is that it's around 3" long so I had to cut the back of my gauge pod out. It is also LED lit and is button selectable for green, red, blue, white color and comes with vac line and tee. Also it says 2" but it fits a 2 1/16" 52mm pod. After the install I felt like this thing can't be too accurate so I raided my brothers HVAC box and hooked up a second gauge to verify it.
Link to gauge at your local Harbor Freight
2" LED Lit Boost/Vacuum Gauge
Youtube video of the two gauges
Link to gauge at your local Harbor Freight
2" LED Lit Boost/Vacuum Gauge
Youtube video of the two gauges